Battery hand lamp



F. G. STMSON.

BATTERY HAND LAMP.

APPLlcATloN FILED ocT.

Patented Oct. 31, 1922;

/N VENTO/e ams an,

e929?! y W A TTORNE Y Patented Oct. 3l, 1922.

UNITED STATES PATENT OFFICE.

FRANK G. STIMSON, OF NEW HAVEN, Cl'.)NNECICU'I7 ASSIGNOR TO WINCHESTERREPEATING ARMS COMPANY, OF NEW HAVEN, CONNECTICUT, A CORPORATION OFCONNECTICUT.

BATTERY HAND LAMP,

Application filed October 20, 1921.

To all whom it may concern:

Be it known that I, FRANK G. STIMsoN, a citizen of the United States,residing at New Haven, in the county of New l-laven, State ofConnecticut, have invented certain new and useful Improvements inBattery Hand Lamps; and I do hereby declare the following to be a full,clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame.

The present invention relates to battery hand lamps of the type in whichthe distribution of light from the lamp can be altered to suit the needsof the user.

In accordance with the present invention, the reliector for the lamp canbe moved relatively to the lamp bulb and its socket to alter the spreadof the projected light and to produce, when desired, a beam ofsubstantially parallel fays adapted for projections to a distance ofseveral hundred feet.

In the preferred embodiment of the invention, the inner and fragileterminal of the lamp is protected from destructive thrust of the upperbattery terminal and means is provided for the convenient storage of aspare bulb. Renewal of a worn out bulb is made easy, and the hand lamphas other useful and novel features as hereinafter pointed out more atlength.

In the accompanying drawing- Figure 1 :is a sectional elevation of oneembodiment of the present invention;

Fig. 2 is a fragmentary elevation of the front end of the hand lamp;

Fig. 3 is a section on the line 3-3 of Fig. l; and

Fig. f1 is a section on the line 4-4 of Fig. 1

In the preferred embodiment illustrated in the drawing, the hand lampcomprises a tubular casing 1, preferably of insulating material suchasliber, which serves as a container for a plurality of dry cells 2placed end to end therein in the usual manner. At the bottom of casing 1is a collar 3 and a bottom closure or end cap l threaded thereto andcarrying a coil spring 5 which makeseleitrical connection with the nakedbottom of the lowermost dry cell and which serial No. 508,989.

holds all of the dry cells in good electrical contact with one anotherand with the mechanism the front end of the casing.

@n the front end of the is a threaded flanged collar 6 held in place asby lmetal rivets l'. Threaded to this a flaring meta-l head. S threadedat its front end to receive a ring 9 in which a plain lens 10 ispermanently mounted. The front end the fiber casing is provided with aclosure 11 held rigidly in position by rivets 7 and consistingY of a cupof insulating material having a central depression 12. leaf spring 13housed in said depression has an extension which passes through saidclosure at .14. and is clamped against the bottom of the ber cup bytangs Y15 pressed up therefrom and inserted through openings in theliber and clinched over, as shown in lthe drawing. The upper brassterminal 1G of the series of dry cells bears against the extension ofspring 13 and thus establishes electrical connection therewith.lVIounted on the top of said fixed closure is a metal plate 1'? havinglingers 18 passed through the bottom of the iiber cup and clinched over,as shown in the drawing, to -hold the plate in position. Electricallyconnected with this plate and preferably integral therewith is athreaded lamp socket 19 in which a lamp bulb 20 is normally mounted withits inner terminal bearing against spring 1B and thus electricallyconnected with the battery. For best results, this lamp bulb should beof a type in which the tungsten lilanient is concentrated atapproximately a pointL Better results can be had from such a lamp thanfrom those using the common S-shaped filaments.

Lamp 2G is provided with a rellector 21 approximately parabolic incontour and hay-- ing` at its front edge an outwardly extending lange 22clamped between the lens porting ring 9 and the 'Front edge of head 8.This reflector is separate rrom lamp socket 19 and eleftricallyinsulated there.A from by a suitable air gap, and has an opening' largeenough to permit removal of head F and its supported parts withoutdisturbing bulb 2O in its soeiiet 19, In other words, the centralopening of the reliector is larger 'than bulb Q0.

The cup-shaped closure 1i is deep enough to torni at the 'trent end oithe easing an annula 'l eoiiiliartnient in which one or more spare lainpbulbs Q3 can be stored ind conveniently carried about. Preferably thecup is lined with a ring` ot paper or other insulating;V material, sothat the nietal socket of a spare bulb Q?, may not bridge the betweenthe adjacent lainp socket 19 and one oit the nietal rivets l and 'thusexpose the hand lainp to the danger ot inadvertent lightingl ra'lienlaid down on a. nietal sur- Y or placed .in rontaet with nietal tools.it stationary niet-al strip is fastened to the` casina by rivet 25 andhas its bent liront end introdrufed through an or ing; 2li iu` tlzeinsulating Cup and yieldinggly pressing` against the edge et plate ll'and thus establisliingv connection with the outer terininal 'i lainp 20.,llie other ol oi i strip is proyided Ywith an outwardly bent linger 25hwhich passes through a hole in the casing` and is enveloped by ahousing,` to which is riveted a leat spring* 2S, 'the tree end oit whichshaped to torni a pan or tliuinb plate 29 opposed to linger 25D and. bywhich the tloiv of current to the. lauip eau be controlled. lny theeo-nstruetion shown, this swinging eontart elenien't Q8 can be hel( inpermanent engagement with linger 25h by first pressing* it down and thensliding; toi-ward a rougliened thunib piece l0 which rari-ies theliiie'ei 3l adapted to dis/anfrage :troni a slot in eleineiit andtherezfr to slide alo-iig` the outer tace ot 'that eleinent and hold itin engagement with tiafger 25h.

lilith the switch mechanism ot' the aeter described. the circuit can betarily closed. as for s'j'ialingr with the code. by a siniple tliuinbpressrue on thi.Vl l the lainp can be berne l i pan 29. o ii desired7 f.continuously by lirst pushiiigggv inwird oi pan 29 and then sliding thethuinb forward against element 30 te inoife finger 3i into sueliposition that it Will liolil the spring' ient in circuit elosinn'relation.

the Construction above i with i particularly when usine; a lmnp uilfliicli the ligijlit-.friyinq laniezit in to approximately a le point.the iight, rays can be sent iut .troni releetor 2l through lens oneanother.

l0 substantially parallel The narrow beain ot' light so `pinduced willcarry to a long` distaiiee. .it a wider beani is desired, the entirehead oi' mesmo and the reflector adjustment best suited to lainp 2O isnot necessarily the adjustmentbest suited to lanip 28.

To yieldingly lock the head in its adjusted position, collar 6 haspressed therein a pr' j sting' lug 32 (Fig. 9.), and the lower edge oi"the nietal head S is pressed outvmidly te terni a plurality oit recesses'tor uglinenient with said lue` to yieldinnly lool; the head againstinadvertent rotation on said collar.

li? the user desires a more diffused light than can be had by adjusting'`the rel'lector aloifiu the axis ot tl lanip bulb. it is por sible toentirety unserew and reiimre head il and its supported retleetor andleusI without iilisturbing;l 'the operative relation beA4 'tween thebattery and lz nip El), and without even opening' the cireuit throne?the lamp. lily this change the hand lanip is converted into what is iiieii'ect battery candle. tor the bulb of lamp 2O is positioned beyoinlthe liront edge oi'f the casing` and so is lree to send its light insubstantially all directions.

lrlarious changes niay be niade iii-the toi-m 1 l el in :i battery handlauip. a easing'. a

y therein. an electric bulb and :i 'therefor mounted independently olf*t* r in said easing. a threaded ineina reH lroto lill vWely to saidbulb to alter e projected lieht. one olf said i and the otherl havn ypressed therein tor 0u i ist inadaded to sai i plurali J et reeesse. .fM.. 1.. .lor enit einem withv sail i`-` d head against i loclt i on saidcollara and a rele t i i i the iorward end oil said metal headindependently of said bulb. said reflector being movable i axially andrelatively 'to said lV b to atei' the siiread of the projected i tsubstantially as described.

3. ln a battery h' easiiifg. i e elosure` i d oit the. said easing.

i". insula: closure :tor the other end an eleetrie bulb mounted in l atubular iii- Iein. a rinnovsaid fixed closure and linsulated thereby,said insulating closure having a central depression in the bottom ofwhich is mounted a spring contact member interposed between said bulband said battery, a reflector' adjustably mounted on the end of saidcasing for co-operating with said bulb, whereby the spread of theprojected light rays may be altered at will, and means for closing andopening the electric circuit through said bulb and said battery at will.

4. In a battery hand lamp, a tubular casing, a battery therein, aclosure of insulating material rigidly mounted in one end of. saidcasing, a bul secured thereto and having a threaded socket, an elect-ricbulb mounted in said socket and insulated by said closure, a springcontact member interposed between said bulb and said battery, means forclosing and opening the electric circuit through said bulb and saidbattei-y at will, a reflector mounted in said casing independently ofsaid lamp and its socket, means whereby the relative longitudinalposition of said bulb and said reflector may be varied for the purposeof altering the spread of the projected light, and means for yieldinglylocking said reflector in any one of several positions to give thedesired distribution of the light, substantially as described.

5. In a. battery hand lamp, a tubular casing, a battery therein, aremovable closure for one end of said casing, a closure of im sulatingmaterial rigidly mounted in the other end of said casing, an electricbulb mounted in the said fixed closure and insulated thereby, means forclosing and opening the electric circuit through said bulb and saidbattery at will, means whereby the spread of the projected light raysmay be altered at will, said insulating closure having a centraldepression in the bottom of which is mounted a spring contact member.interposed between said bulb and said battery, and a threaded metalsocket for the lrece'liition ot said bulb and having at its inner end anoutwardly extending annular plate n'iountcd upon the outer face oi saidinsulating closure.

6. In a battery hand lamp, a tubular cas ing,a removable closure for oneend of said casing, a fixed closure for the other end of said casingcomprising an insulating cuplilre member rigidly mounted in said casing,a spring centrally located in said insulating member, a metallic platerigidly attached to said insulating member and having a forwardlyprojecting threaded socket, an electric bulb mounted in said socket andin contact with said spring, a battery in said casing with its forwardpole contacting with said spring, means whereby the electric circuitthrough said bulb and said battery may be opened and closed at will, andmeans.

whereby the spread of the projected light rays may be altered at will.

7. In a battery hand lamp, a tubular 'casing, a battery therein, aremovable closure for one end of said casing, a fixed closure ttor theother end of said casing, an electric bulb mounted in said fixedclosure, a reflector adjustably mounted on the end of said casing forco-operation with said bulb whereby the spread of the projected lightrays may be altered at will, and means for closing and opening theelectric circuit through said bulb and said battery at will, the saidfixed closure being rigidly mounted in said casing and comprising a cupof insulating material having a central depression, a metallic springmounted in said depression and interposed between said bulb and saidbattery, and a threaded socket rigidly fastened to said cup and in whichsaid bulb is mounted, substantially as described. l

8. In a battery hand lamp, a tubular insulating casing, a batterytherein, a removable closure for one end of said casing, a fixed closurefor the other end of said casing, said iiXed closure comprising a cup ofinsulating material having a central depression, a spring housed in saiddepression and having an extension passing through said cloure andagainst which said battery presses, a metal plate mounted on the top ofsaid fixed closure and having an outwardly projecting threaded socket, alamp bulb in said socket, a switch mechanism by which the batterycurrent is controlled, a stationary, conductor leading from said metalplate to said switch mechanism, a reflector insulated from said socketand movable with respect thereto, a threaded collar on the front end ofsaid casing and having a projecting lug, a metal head threaded to saidcollar and having a plurality'of recesses pressed therein for engagementwith said lug to yieldingly lock said head against .inadvertent rotationon said collar, and a lens for said lamp, said lens and reflectory beingsupported at the forward end of said metal head and being movabletherewith to change the spread of of the lio'ht from said lamp,substantially as describe 9. In a battery hand lamp, the combination ofa casing, a cup of insulating material closing the front end of saidcasing, a lamp socket carried by said cup, and a re- Hector for thelamp, said insulating cup being of a size to provide storage space for aspare lamp bulb beneath said reflector and at the side of said lampsocket.

In testimony whereof I aliix my signature.

FRANK G. STIMS'ON.

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